Display panel of a programmed computer system with a transitional graphical user interface



FIG. 1 is a front view of a first image of a display panel of a programmed computer system with a transitional graphical user interface; and,

FIG. 2 is a front view of a second image thereof.

The outer broken line showing of the display panel forms no part of the claimed design.

The remainder of the broken lines that show portions of the transitional graphical user interface form no part of the claimed design.

The appearance of the image transitions sequentially between the images shown in FIGS. 1 and 2. This process or period in which an image transitions to another forms no part of the claimed design. 

CLAIM We claim the ornamental design for a display panel of a programmed computer system with a transitional graphical user interface, as shown and described. 